Upgrade build packages

This resolves a whole bunch of warnings and build issues
from using out of date packages. Became sort of necessary
when we couldn't npm install anymore because our
out-of-date node-sass version demanded Python v2.

Author: fongandrew

.babelrc

@@ -4,6 +4,6 @@
     "@babel/preset-react"
   ],
   "plugins": [
-    "transform-object-assign"
+    "@babel/plugin-transform-object-assign"
   ]
 }